From: Yuan Yao <yao.yuan@freescale.com>
To: wsa@the-dreams.de, marex@denx.de
Cc: mark.rutland@arm.com, shawn.guo@linaro.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org
Subject: [PATCH v2 2/2] Documentation:add DMA support for freescale i2c driver
Date: Wed, 5 Mar 2014 14:52:32 +0800 [thread overview]
Message-ID: <1394002352-8380-3-git-send-email-yao.yuan@freescale.com> (raw)
In-Reply-To: <1394002352-8380-1-git-send-email-yao.yuan@freescale.com>
Add i2c dts node properties for eDMA support, them depend on the eDMA driver.
Signed-off-by: Yuan Yao <yao.yuan@freescale.com>
---
Documentation/devicetree/bindings/i2c/i2c-imx.txt | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.txt b/Documentation/devicetree/bindings/i2c/i2c-imx.txt
index 4a8513e..52d37fd 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx.txt
@@ -11,6 +11,8 @@ Required properties:
Optional properties:
- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
The absence of the propoerty indicates the default frequency 100 kHz.
+- dmas: A list of two dma specifiers, one for each entry in dma-names.
+- dma-names: should contain "tx" and "rx".
Examples:
@@ -26,3 +28,12 @@ i2c@70038000 { /* HS-I2C on i.MX51 */
interrupts = <64>;
clock-frequency = <400000>;
};
+
+i2c0: i2c@40066000 { /* i2c0 on vf610 */
+ compatible = "fsl,vf610-i2c";
+ reg = <0x40066000 0x1000>;
+ interrupts =<0 71 0x04>;
+ dmas = <&edma0 0 50>,
+ <&edma0 0 51>;
+ dma-names = "rx","tx";
+};
--
1.8.4
prev parent reply other threads:[~2014-03-05 6:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 6:52 [PATCH v2 0/2] i2c: add DMA support for freescale i2c driver Yuan Yao
2014-03-05 6:52 ` [PATCH v2 1/2] " Yuan Yao
[not found] ` <1394002352-8380-2-git-send-email-yao.yuan-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2014-03-06 2:39 ` Marek Vasut
[not found] ` <201403060339.45611.marex-ynQEQJNshbs@public.gmane.org>
2014-03-06 4:36 ` Yao Yuan
[not found] ` <1c0c5f2ce69849d4bf482601ac431da6-AZ66ij2kwaZYLYlmg7qx2OO6mTEJWrR4XA4E9RH9d+qIuWR1G4zioA@public.gmane.org>
2014-03-06 4:41 ` Marek Vasut
[not found] ` <201403060541.21665.marex-ynQEQJNshbs@public.gmane.org>
2014-03-06 5:02 ` Yao Yuan
[not found] ` <50e0997786a0459eb08c9d92813253f9-AZ66ij2kwaZYLYlmg7qx2OO6mTEJWrR4XA4E9RH9d+qIuWR1G4zioA@public.gmane.org>
2014-03-06 11:57 ` Marek Vasut
[not found] ` <201403061257.42755.marex-ynQEQJNshbs@public.gmane.org>
2014-03-06 13:55 ` 答复: " Yao Yuan
2014-03-10 2:00 ` Shawn Guo
[not found] ` <20140310020051.GA15218-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2014-03-11 5:27 ` Yao Yuan
[not found] ` <1d35d91fd0f1414587edf47ab03e20ae-AZ66ij2kwaZYLYlmg7qx2OO6mTEJWrR4XA4E9RH9d+qIuWR1G4zioA@public.gmane.org>
2014-03-11 10:40 ` Marek Vasut
2014-03-05 6:52 ` Yuan Yao [this message]
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